I think we had ones by Little Tummies or something at Target because I couldn't find where the ones by other brands were located in the aisle. Seemed to work. Or not.
Mommys bliss gripe water helped us a lot with DS1. When it was bad i also gave simethecone drops.
Another vote for Mommy's Bliss gripe water. It was magical for DD2.
They came out with a night time version and I got a bottle to try. But so far Ds2 hasn't needed it...maybe it's because I'm avoiding the foods I had to avoid with Ds1...
I had more success with gripe water as well though. Especially with DS. Baby crack for him. I used Mommy's Bliss, Little Remedies, some no name brand I bought on Amazon. It all worked about the same for us.